8 research outputs found
ΠΠΊΡΠΏΡΠ΅ΡΡΠΈΡ ΠΊΠΎΠ½ΡΡΠΎΠ»ΡΠ½ΠΎΠΉ ΡΠΎΡΠΊΠΈ ΠΈΠΌΠΌΡΠ½ΠΈΡΠ΅ΡΠ° B7-H3 Π² ΠΎΠΏΡΡ ΠΎΠ»ΠΈ ΠΈ Π΅Π΅ ΡΠ°ΡΡΠ²ΠΎΡΠΈΠΌΠΎΠΉ ΡΠΎΡΠΌΡ Π² ΡΡΠ²ΠΎΡΠΎΡΠΊΠ΅ ΠΊΡΠΎΠ²ΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ Π½ΠΎΠ²ΠΎΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡΠΌΠΈ ΠΊΠΎΡΡΠ΅ΠΉ
B7-H3, also called CD276, is a type I transmembrane glycoprotein that is encoded on human chromosome 15. It was discovered back in 2001. The original study described it as a positive co-stimulant, as it can stimulate T-cell response and IFN-y production. However, recent researches have shown that B7-H3 is involved in T-cell inhibition. A B7-H3 receptor has not been yet identified, and this may explain the complex immunomodulatory activity of B7-H3, as it can have more than one binding partner with different functions. Expression of the B7-H3 protein has been found on activated immune cells such as T-cells, NK cells and antigen presenting cells. Interestingly, it is overexpressed in a wide range of tumor cells and is associated with disease progression and outcome. The soluble form of this protein is also of particular interest. Increased sB7-H3 levels in the plasma of bone tumor patients might be their important diagnostic criterion.B7-H3, ΡΠ°ΠΊΠΆΠ΅ Π½Π°Π·ΡΠ²Π°Π΅ΠΌΡΠΉ CD276, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠΎΠ±ΠΎΠΉ ΡΡΠ°Π½ΡΠΌΠ΅ΠΌΠ±ΡΠ°Π½Π½ΡΠΉ Π³Π»ΠΈΠΊΠΎΠΏΡΠΎΡΠ΅ΠΈΠ½ ΡΠΈΠΏΠ° I, ΠΊΠΎΡΠΎΡΡΠΉ ΠΊΠΎΠ΄ΠΈΡΡΠ΅ΡΡΡ Π½Π° Ρ
ΡΠΎΠΌΠΎΡΠΎΠΌΠ΅ 15 ΡΠ΅Π»ΠΎΠ²Π΅ΠΊΠ°. ΠΠ½ Π±ΡΠ» ΠΎΡΠΊΡΡΡ Π΅ΡΠ΅ Π² 2001 Π³. ΠΠ΅ΡΠ²ΠΎΠ½Π°ΡΠ°Π»ΡΠ½ΠΎΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ ΠΎΠΏΠΈΡΠ°Π»ΠΎ Π΅Π³ΠΎ ΠΊΠ°ΠΊ ΠΏΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΡΠΉ ΠΊΠΎΡΡΠΈΠΌΡΠ»ΡΡΠΎΡ Π²ΡΠ»Π΅Π΄ΡΡΠ²ΠΈΠ΅ ΡΠΏΠΎΡΠΎΠ±Π½ΠΎΡΡΠΈ ΡΡΠΈΠΌΡΠ»ΠΈΡΠΎΠ²Π°ΡΡ Π’-ΠΊΠ»Π΅ΡΠΎΡΠ½ΡΠΉ ΠΎΡΠ²Π΅Ρ ΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΠΈΡ IFN-Y. ΠΠ΄Π½Π°ΠΊΠΎ Π½Π΅Π΄Π°Π²Π½ΠΈΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΡΠΎ B7-H3 ΡΡΠ°ΡΡΠ²ΡΠ΅Ρ Π² ΠΈΠ½Π³ΠΈΠ±ΠΈΡΠΎΠ²Π°Π½ΠΈΠΈ Π’-ΠΊΠ»Π΅ΡΠΎΠΊ. Π Π΅ΡΠ΅ΠΏΡΠΎΡ Π΄Π»Ρ B7-H3 Π΅ΡΠ΅ Π½Π΅ ΠΈΠ΄Π΅Π½ΡΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½. ΠΡΠΎ ΠΎΠ±ΡΡΡΠ½ΡΠ΅Ρ ΡΠ»ΠΎΠΆΠ½ΡΡ ΠΈΠΌΠΌΡΠ½ΠΎΠΌΠΎΠ΄ΡΠ»ΠΈΡΡΡΡΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ B7-H3, ΠΊΠΎΡΠΎΡΡΠΉ ΠΌΠΎΠΆΠ΅Ρ ΠΈΠΌΠ΅ΡΡ Π±ΠΎΠ»Π΅Π΅ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΏΠ°ΡΡΠ½Π΅ΡΠ° ΠΏΠΎ ΡΠ²ΡΠ·ΡΠ²Π°Π½ΠΈΡ Ρ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠΌΠΈ ΡΡΠ½ΠΊΡΠΈΡΠΌΠΈ. ΠΠΊΡΠΏΡΠ΅ΡΡΠΈΡ Π±Π΅Π»ΠΊΠ° B7-H3 Π½Π°Π±Π»ΡΠ΄Π°Π»ΠΈ Π½Π° Π°ΠΊΡΠΈΠ²ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΈΠΌΠΌΡΠ½Π½ΡΡ
ΠΊΠ»Π΅ΡΠΊΠ°Ρ
, ΡΠ°ΠΊΠΈΡ
ΠΊΠ°ΠΊ Π’-ΠΊΠ»Π΅ΡΠΊΠΈ, NK-ΠΊΠ»Π΅ΡΠΊΠΈ ΠΈ Π°Π½ΡΠΈΠ³Π΅Π½ΠΏΡΠ΅Π·Π΅Π½ΡΠΈΡΡΡΡΠΈΠ΅ ΠΊΠ»Π΅ΡΠΊΠΈ. ΠΠ½ΡΠ΅ΡΠ΅ΡΠ½ΠΎ, ΡΡΠΎ ΠΎΠ½ Π³ΠΈΠΏΠ΅ΡΡΠΊΡΠΏΡΠ΅ΡΡΠΈ-ΡΠΎΠ²Π°Π½ Π² ΡΠΈΡΠΎΠΊΠΎΠΌ ΡΠΏΠ΅ΠΊΡΡΠ΅ ΠΎΠΏΡΡ
ΠΎΠ»Π΅Π²ΡΡ
ΠΊΠ»Π΅ΡΠΎΠΊ ΠΈ ΡΠ²ΡΠ·Π°Π½ Ρ ΠΏΡΠΎΠ³ΡΠ΅ΡΡΠΈΠ΅ΠΉ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡ ΠΈ ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΎΠΌ. ΠΡΠΎΠ±ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΠ΅Ρ ΡΠ°ΠΊΠΆΠ΅ ΡΠ°ΡΡΠ²ΠΎΡΠΈΠΌΠ°Ρ ΡΠΎΡΠΌΠ° Π΄Π°Π½Π½ΠΎΠ³ΠΎ Π±Π΅Π»ΠΊΠ°. ΠΠΎΠ²ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΎΠ΄Π΅ΡΠΆΠ°Π½ΠΈΡ sB7-H3 Π² ΠΏΠ»Π°Π·ΠΌΠ΅ ΠΊΡΠΎΠ²ΠΈ Π±ΠΎΠ»ΡΠ½ΡΡ
ΠΎΠΏΡΡ
ΠΎΠ»ΡΠΌΠΈ ΠΊΠΎΡΡΠ΅ΠΉ ΠΌΠΎΠΆΠ΅Ρ ΠΎΠΊΠ°Π·Π°ΡΡΡΡ Π²Π°ΠΆΠ½ΡΠΌ Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΊΡΠΈΡΠ΅ΡΠΈΠ΅ΠΌ